CBP data indicates that there are more establishments categorized as professional, scientific and technical services businesses with between one and four employees in Middlesex County zip codes than in any other category.
The following table shows how many industries not classified businesses with between one and four employees were in Middlesex County zip codes during the period from 2012 to 2016.
Industries not classified businesses with between one and four employees in Middlesex County (2012-2016)
Year
Total businesses
2012
15
2013
27
2014
22
2015
17
2016
21